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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 11 — May. 26, 2008
  • pp: 8300–8305

Novel index-guided photonic crystal fiber surface-enhanced Raman scattering probe

He Yan, Jie Liu, Changxi Yang, Guofan Jin, Claire Gu, and Lantian Hou  »View Author Affiliations

Optics Express, Vol. 16, Issue 11, pp. 8300-8305 (2008)

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We demonstrate a novel index-guided (IG) photonic crystal fiber (PCF) surface-enhanced Raman probe. Different from a regular PCF, the IGPCF has four big air holes inserted between the solid silica core and the photonic crystal cladding holes. The gold nanoparticles, serving as the surface enhanced Raman scattering (SERS) substrate, are either coated on the inner surface of the holes or mixed in the analyte solution in two separate experiments, respectively. The analyte solution enters the holes via the capillary effect. The excitation light propagating in the silica core interacts with the gold nanoparticles and the analyte through the evanescent wave which extends significantly into the four big holes when they are filled with liquid leading to a large interaction volume between the excitation light and the nanoparticles/analyte.

© 2008 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(300.6450) Spectroscopy : Spectroscopy, Raman
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Photonic Crystal Fibers

Original Manuscript: March 27, 2008
Revised Manuscript: May 1, 2008
Manuscript Accepted: May 19, 2008
Published: May 22, 2008

Virtual Issues
Vol. 3, Iss. 6 Virtual Journal for Biomedical Optics

He Yan, Jie Liu, Changxi Yang, Guofan Jin, Claire Gu, and Lantian Hou, "Novel index-guided photonic crystal fiber surface-enhanced Raman scattering probe," Opt. Express 16, 8300-8305 (2008)

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